#2 Seth Rollins (WWE RAW)
While Becky Lynch is an irreplaceable superstar on WWE's roster, so is her fiance Seth Rollins. A two-time Universal Champion, two-time WWE Champion, Mr. Money in the Bank (2014), Royal Rumble winner (2019) are just a few of the achievements of his WWE career so far. Many already consider him to be a future WWE Hall of Famer and it's really tough to argue that claim.
After making a name for himself on the independent circuit, Seth Rollins signed with WWE in 2010 and became the first NXT Champion a couple of years later.
His main roster career began at WWE Survivor Series 2012, where he debuted alongside Roman Reigns and Dean Ambrose as The Shield. In the next few years, The Shield dominated the WWE roster, establishing itself as one of the greatest factions in recent history. After turning on his Shield brothers, Seth Rollins aligned himself with The Authority and had a great run as a heel.
Seth Rollins is one of those few WWE Superstars who have excelled both as a heel and a babyface in WWE. He has the ability to make the fans chant "Burn it down" for him, and even make them hate him as The Messiah. He is also considered by many as one of the best pro-wrestlers in the world today.
Seth Rollins is just the complete package that any wrestling promotion would want in their top guy and it's highly unlikely that Vince McMahon would ever release him from WWE.